Thiele Geotech, Inc.

Omaha, Nebraska Michael Gerdes
13478 Chandler Road Omaha, Nebraska 68138-3716

Phone: (402) 556-2171 Fax: (402) 556-7831
Quality Management System - accredited since 11/15/1993
R18, C1077 (Aggregate), C1077 (Concrete), C1093 (Masonry), D3666 (Aggregate), D3666 (Asphalt Mixture), D3740 (Soil), E329 (Aggregate), E329 (Asphalt Mixture), E329 (Concrete), E329 (SFRM), E329 (Soil)

Asphalt Mixture - accredited since 11/15/1993
R47, R68, T30, T166, T209, T245, T269, T275, T283, T308, T312, T329, D1188, D2041, D2726, D2950, D3203, D4867, D5444, D6307, D6925, D6926, D6927

Soil - accredited since 11/15/1993
R58, T88, T89, T90, T99, T100, T134, T176, T180, T191, T193, T208, T215, T216, T236, T265, T296, T310, D421, D422, D558, D698, D1140, D1556, D1557, D1883, D2166, D2216, D2419, D2434, D2435, D2487, D2488, D2850, D3080, D4318, D4643, D5084, D6938

Aggregate - accredited since 11/15/1993
T2, T11, T19, T21, T27, T84, T85, T96, T104, T112, T113, T176, T248, T255, T303, T304, T335, C29, C40, C88, C117, C123, C127, C128, C131, C136, C142, C227, C535, C566, C702, C1252, C1260, C1567, D75, D2419, D4791, D5821

Sprayed Fire-Resistive Material - accredited since 5/14/2012
E605, E736

Concrete - accredited since 5/1/1995
M201, R39, R60, T22, T23, T24, T97, T119, T121, T148, T152, T160, T196, T231 (7000 psi and below), T303, T309, C31, C39, C42, C78, C138, C143, C157, C172, C173, C174, C192, C227, C231, C511, C617 (7000 psi and below), C642, C1064, C1231, C1260, C1567

Masonry - accredited since 3/30/2005
C140 (CMU: Absorption)
C140 (CMU: Compressive Strength)
C140 (CMU: Measurement)
C140 (CMU: Sampling)
C1552 (Capping Concrete Masonry Units, Related Units and Masonry Prisms for Compression Testing)

+++ Our accreditation directory listing for this standard is in the process of being divided into three separate components: ultimate tensile strength, elongation, and yield strength. Changes will be made on each applicable laboratory’s accreditation directory listing to reflect this change after we complete the next normally scheduled on-site assessment.

Please note that our accreditations do not include an expiration date. An accreditation only expires when the laboratory fails to comply with our accreditation requirements.

* This information is only valid as of 7/29/2016. Please visit for current accreditation status.

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